| Karlsruhe to Boppard | 91.96 mi (147.99 km) |
| Karlsruhe to Borgentreich | 180.61 mi (290.66 km) |
| Karlsruhe to Borgholzhausen | 213.60 mi (343.76 km) |
| Karlsruhe to Borken | 206.52 mi (332.36 km) |
| Karlsruhe to Borna | 232.77 mi (374.60 km) |
| Karlsruhe to Bornheim | 136.01 mi (218.88 km) |
| Karlsruhe to Bosel | 276.83 mi (445.51 km) |
| Karlsruhe to Bottrop | 185.70 mi (298.85 km) |
| Karlsruhe to Bovenden | 190.46 mi (306.51 km) |
| Karlsruhe to Brackenheim | 30.45 mi (49.00 km) |
| Karlsruhe to Brake | 298.79 mi (480.85 km) |
| Karlsruhe to Brakel | 190.19 mi (306.09 km) |
| Karlsruhe to Bramsche | 235.00 mi (378.20 km) |
| Karlsruhe to Brand | 156.15 mi (251.29 km) |
| Karlsruhe to Brand-Erbisdorf | 253.57 mi (408.08 km) |
